FM3164

FM3164/FM31256 64-Kbit/256-Kbit Integrated Processor Companion with F-RAM 256-Kbit (32 K × 8) Serial (SPI) F-RAM Features ■ 64-Kbit/256-Kbit ferroelectric random access memory (F-RAM) ❐ Logically organized as 8 K × 8 (FM3164) / 32 K × 8 (FM31256) ❐ High-endurance 100 trillion (1014) read/writes ❐ 151-year data retention (See the Data Retention and Endurance table) ❐ NoDelay™ writes ❐ Advanced high-reliability ferroelectric process ■ High Integration Device Replaces Multiple Parts ❐ Serial nonvolatile memory ❐ Real time clock (RTC) ❐ Low voltage reset ❐ Watchdog timer ❐ Early power-fail warning/NMI ❐ Two 16-bit event counter ❐ Serial number with write-lock for security ■ Real-time Clock/Calendar ❐ Backup current at 2 V: 1.15 A at +25 C ❐ Seconds through centuries in BCD format ❐ Tracks leap years through 2099 ❐ Uses standard 32.768 kHz crystal (6 pF) ❐ Software calibration ❐ Supports battery or capacitor backup ■ Processor Companio...